<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片区域 -->
        <el-card>
            <!-- 搜索框和添加商品区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- 表格区域 -->
            <el-table :data="goodsList" border stripe>
                <el-table-column type="index" label="序号"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格（元）" prop="goods_price" width="110px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="150px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dataFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="120px">
                    <template slot-scope="scope">
                        <el-button size="mini" type="primary" icon="el-icon-edit"></el-button>
                        <el-button size="mini" type="danger" icon="el-icon-delete" @click="deleteGood(scope.row)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination background
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[10, 20, 30, 40]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参水对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },

      // 商品总数
      total: 0,

      // 商品列表数组
      goodsList: []
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败')
      this.$message.success('获取商品列表成功')
      this.total = res.data.total
      this.goodsList = res.data.goods
    },

    // 每页条数发生改变时触发
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },

    // 当前页码发生改变时触发
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },

    // 删除当前的商品
    async deleteGood(row) {
      const confirmBtn = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmBtn === 'cancel') return this.$message('取消了删除')
      const { data: res } = await this.$http.delete(`goods/${row.goods_id}`)
      if (res.meta.status !== 200) return this.$message.error('删除商品失败')
      this.$message.success('删除商品成功')
      this.getGoodsList()
    },

    // 点击添加按钮，跳转到添加页面
    goAddPage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
